Results 1 to 10 of about 4,658,068 (170)

A Project-Based Learning Approach for Building an Affordable Control Teaching Lab: The Centrifugal Ring Positioner

open access: yesIEEE Access, 2022
This paper presents a novel experimental setup for teaching control engineering. This setup was developed during a project-based learning activity.
Xavier Jordens   +4 more
doaj   +1 more source

Investigation of the OA-300M Electrolysis Cell Temperature Field of Metallurgical Production

open access: yesEnergies, 2022
In this study, the authors explored the issues of the Soderbergh electrolysis cell’s increase in economic efficiency. This result was achieved by analyzing the temperature fields of the electrolysis cell in order to determine the overheating points. As a
Tatyana Valeryevna Kukharova   +2 more
doaj   +1 more source

The Development of the Toxic and Flammable Gases Concentration Monitoring System for Coalmines

open access: yesEnergies, 2022
Coal mining is still an important part of the global energy complex. Despite the active development of technologies and modern equipment, coal mining remains one of the most dangerous jobs in the world.
Alexander Vitalevich Martirosyan   +1 more
doaj   +1 more source

Modeling of the Natural Objects’ Temperature Field Distribution Using a Supercomputer

open access: yesInformatics, 2022
There are some regions where the unique type of mineral water mining is compounded by the complex structure conditions of the field. Due to the high emergency risks, the automation of this type of mineral water fields’ exploitation process is a necessity.
Alexander Vitalievich Martirosyan   +1 more
doaj   +1 more source

Adaptive Petal Reflector: In-Lab Software Configurable Optical Testing System Metrology and Modal Wavefront Reconstruction

open access: yesSensors, 2023
This paper addresses two aspects of the metrology of spherical, petal polymer reflectors which are part of an effort by the European Space Agency (ESA) to develop actively controlled foldable reflectors, enabling larger apertures on CubeSats and small ...
Carl Johan G. Nielsen, André Preumont
doaj   +1 more source

Adaptive Deployable Thin Spherical Shell Reflectors

open access: yesActuators, 2022
This paper begins with a quick survey of potential space applications and a brief review of previous experiments on the shape control of a spherical shell reflector with a thin film of PVDF-TrFE.
Carl Johan G. Nielsen   +3 more
doaj   +1 more source

Robotic Hummingbird Axial Dynamics and Control near Hovering: A Simulation Model

open access: yesActuators, 2023
After a short overview of the COLIBRI project, this paper considers the cycle-averaged flight dynamics of a flapping-wing robot near hovering, taking advantage of the weak coupling between the roll and pitch axes.
Yousef Farid   +5 more
doaj   +1 more source

DYNAMICAL ANALYSIS OF A NETWORKED CONTROL SYSTEM [PDF]

open access: yesInternational Journal of Bifurcation and Chaos, 2007
A new network data transmission strategy was proposed in [Zhang & Chen, 2005], where the resulting nonlinear system was analyzed and the effectiveness of the transmission strategy was demonstrated via simulations. In this paper, we further generalize the results of Zhang and Chen [2005] in the following ways: (1) Construct first-return maps of the
Guofeng Zhang 0003   +3 more
openaire   +3 more sources

A Note on the Electromechanical Design of a Robotic Hummingbird

open access: yesActuators, 2021
This paper analyzes the lift-production system in hovering of the flapping wing robot COLIBRI of the size of a hummingbird. The paper first examines the flapping wing mechanism for which a new gear transmission is proposed to reduce the friction and ...
André Preumont   +4 more
doaj   +1 more source

Experimental Study Results Processing Method for the Marine Diesel Engines Vibration Activity Caused by the Cylinder-Piston Group Operations

open access: yesInventions, 2023
The article discusses the method and results of processing statistical data from an experimental study of vibrations in marine diesel engines caused by the operation of cylinder-piston groups.
Olga Afanaseva   +3 more
doaj   +1 more source

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